GAS: UGameplayEffect tags async loading race condition

UE - Gameplay - Gameplay Ability System - Oct 12, 2022

User reported game thread and async loading thread accessing a UGameplayEffect property at the same time:Game thread having loaded a GameplayEffectA and in its PostLoad() updating the property Inher ...

Custom UVs don't store information properly in layered materials.

UE - Rendering Architecture - Materials - May 9, 2022

[Link Removed] I have this set up so that FX artists can stack UV manipulations, so I don't want to just have all the UV manipulation in the layer with the base color, even though that does give me ...

Linux crash upon opening maps in Soul: City content pack

UE - Graphics Features - Jan 29, 2018

Opening the maps from the Soul: City asset pack on Linux causes a crash. This seems to be rendering related. It was originally reported as a Vulkan specific issue but we've reproduced it without Vul ...

Zooming in UMG preview doesn't scale text block margin

UE - Editor - UI Systems - May 20, 2015

Zooming in UMG preview doesn't scale text block margin [Image Removed] [Image Removed] ...

UDN: ChildBP - When replacing Static or SkelMesh Compoent inherited from the Parent Class, Socket list doesn't update

UE - Gameplay - Blueprint - May 21, 2015

This is simple, but maybe hard to explain, so hear with me. I've attached a sample project and Repro Steps below in case it's not clear. Basically: 1. Make BP_Parent with an unassigned Mesh (Stati ...

Import FBX of Maya to Matinee seems converting incorrect location (coordination)

Tools - May 22, 2015

Import feature of Matinee seems converting incorrect location (coordination) if importing Maya animated FBX that exported StaticMeshes from UE4 editor. Sometimes licensee asks this kind of coordina ...

Unreal Frontend output log is garbled if using non-ASCII language

UE - Foundation - Core - May 25, 2015

If you set the editor language to a non-ASCII language like Japanese, Korean or Chinese, any localized strings that have non-ASCII characters will appear as "?" in the output of UnrealFrontend. [Im ...

Converting Texture Sample to Parameter when MipValue set to "Level" or "Bias"

UE - Rendering Architecture - Materials - May 27, 2015

When a Texture Sample's MipValue is set to something other than "none" (which adds the extra pin), attempting to convert that Texture Sample to a parameter will cause the Editor to crash. (Simple r ...

Turning off Apply Wind after switching tabs crashes editor

OLD - Anim - May 27, 2015

In the Skeletal Mesh editor, turning Show>Clothing>Apply Wind while switching tabs causes a crash. For example, turn it on while in the Mesh tab. Switch to Animation Tab and then back to Mesh. Turn ...

Cannot softly vertex paint blend weights with a 4-node blend material

Tools - Jun 15, 2015

Video attached. If you make a 4 node blend material like so: [Image Removed] When you try to paint blend weights, the color you paint instantly jumps to the maximum value, and there's no way to p ...